Rear-axle casing.



W. W. SPEARMAN.

REAR AXLE CASING.

APPLICATION FILED JUNE 21.!917.

Patented Dec. 4,1917.

east AVAlLABLE one.

WALTER w. SPEARMAN, or MnLBEnnY, FLORIDA.

REAR-AXLE CASING.

To all whom it may concern:

Be it known that I, WALTER W. SPEAR- MAN, a citizen of the United States, residing at Mulberry, in the county of Polk, State of Florida, have :tul Improvements in Rear-Axle Casings; and I do hereby declare the following to be a full, clear, and exact description of the in vention, such as will enable others skilled in the art to Which it appertainS to make and use the same.

This p invention is L an improvement in motor vehicles and has particular reference to a casing for the rear axle thereof.

An object of the invention is to {provide a casing in which the rear axle is so mounted that the lubricant in the difl'erentialhousing, forming a part of said housing, will be retained therein and prevented from flowing to the ends of the axle p v.

Another objectis as provide a casing for rear-axles which is simple "in construction, easy tomanufacture and. effective in carrying out the purpose for which it is designed.

The inventive idea involved is capable of "receiving a variety of mechanical expressions, one of which, for the purposeot' illustrating the invention, is shown in thejacelompanying drawing, wherein F igure 1 isa fra gi'nentary rear elevation of an. automobile showing the casing applied to the rear axle and constructed in accordancewith the invention.

Fig. a longitudinal section through the rear axle.

Fig. 3 is a'sectiou on the line 3-3 of Fig. 1.

In thedrawing the numeral 5 indicates the rear axle of the vehicle with which. is associated the differential gearing 6 of any conventional form. I z

The casing generally indicated by the numeral 7 is preferably formed of complemei'ital sections 8 surrounding the axle in spaced ,relation, the inner ends of tho'scc tions being enlarged to provide a housing 9 for the gearing 6 while the illlGIliKHlldtfi por- Specification of Letters Patent.

invented certain newand usemoved and replaced by first Patented Dec. 4, 1917.

Application filed June 21, 1917. Serial No. 176,139.

ing forms a chamber which is intersected by the longitudinal opening of the casing for receiving the axle and insertible' through the opening 11 and into said chamber, and engageable in the axle opening of the casing is a combined bearing and stutling box 14 in which the axle 5 is journaled and which is provided. with a flange 15 for securing said stufiing box, by

the chamber adjacent the differentialhousing. These stufling boxes may be readily redetaching the cover plate 12 whereby access may be had to said boxes and it will be apparent that while in position the same will effectively prevent the passage of oil or other lubricant from the differential hpusing into the outer ends of the sections of the casing thereby retainfasteners, 16, to the wall of ing said lubricant within said housing so" at all times be properly veach section of said casing being further provided with a chamber intermediate the ends thereof, a stufling box insertiblc into said chamber and surrounding and forming a bearing for said axle whereby a lubricant passing from said housing into tics of each section 8 is also enlarged as 1 indicated at 10 and provided with an opening 11 normally closed by a movable cover plate 12 secured to the enlarged portion 10 311v suitable fasteners 13. I

The opening 11 in each section of the cas said chamber, and a removable cover for said chamber.

2. In a motor vehicle, the combination of a rear axle and the differential gearing therefor, a casing for said rear axle having a portion forming a housing for said gear" in; and also having a chamber formed on each side of said housing, and means insertible into said chambers and between the same andsaid housing for preventing the passage of a lubricant from the latter to the ends of said casing.

I n testimony whereof, I afiix my signature in the presence of two witnesses.

WALTER W. SPF; ARMAN.

Witnesses JOHN ll. SMITH, H. J. KonnNna.

to prevent 

